Category: vSAN

I was working on some test configuration in my lab and noticed the update pop-up. So just checked it out on my vCenter Server 7.0 update planner for more details about this patch. Out of curiosity, checked the release notes for the same in order to understand details about this patch since it is marked … Continue reading VMware vCenter Server 7.0.0a Update→

vSAN Cluster rebalancing evenly distributes resources across the cluster to maintain consistent performance and availability.If you remove capacity devices from the vSAN cluster, the disk groups might become unbalanced. If you add hosts or capacity devices to the vSAN cluster, the disk groups might become unbalanced. Rebalancing also occurs when you place a vSAN host … Continue reading vSAN 6.x Cluster Rebalancing→

We are going to discuss vSAN architecture components in this post. Generally, vSAN is easy to work with using management tools like vSphere client, Ruby Console or Web client and it simplifies administrative tasks greatly. However, it is important from troubleshooting point of view to know how things work under the hood. vSAN operations are … Continue reading vSAN 6.x Architecture Components→

In this post, we are going to discuss possible vSAN cluster designs, vSAN requirements and considerations. As we all know, vSAN is available to customers in two flavours as listed below. Hybrid: Hybrid vSAN is implemented using combination of SSD (as Cache) and HDD (as Capacity device) Image: VMware All Flash: All flash … Continue reading vSAN 6.x Cluster designs and considerations→

vSphere 6.7 and vSAN 6.7 now includes vRealize Operations within vCenter that provides monitoring capabilities natively in the HTML5 “Clarity” based vSphere client. This new feature allows vSphere customers to see a subset of intelligence offered up by vRealize Operations (vROPS) through a single vCenter user interface. Light-weight purpose-built dashboards are included for both vSphere and … Continue reading vSphere 6.7 and vSAN 6.7 native monitoring using vROPS within vCenter→

Before we talk about vSAN Trim//Unmap, let's do quick recap about thin and thick provisioning. In this example below, VM1 is thick provisioned and VM2 is thin provisioned. VM1 was allocated 40 GB as disk space at the time of creation. Since it is thick provisioned, entire 40 GB space is occupied by VM1 from … Continue reading What is TRIM/UNMAP in vSAN 6.7?→

In recent discussion I had on this topic, there was a query as below? "If we are creating vSAN vmkernel port that carries vSAN traffic, in that case why do we need to use vSAN multicast (prior to vSAN 6.6) and Unicast (in vSAN 6.6 and onwards)?". In other words, what is really transferred inside … Continue reading What is inside vSAN multicast/Unicast traffic?→